linux-kernel - Re: UBSAN: shift-out-of-bounds in dummy_hub

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Date:   Tue, 29 Dec 2020 09:00:07 -0800
From:   syzbot <syzbot+5925509f78293baa7331@...kaller.appspotmail.com>
To:     andreyknvl@...il.com, andreyknvl@...gle.com, balbi@...nel.org,
        gregkh@...uxfoundation.org, gustavoars@...nel.org,
        linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
        stern@...land.harvard.edu, syzkaller-bugs@...glegroups.com
Subject: Re: UBSAN: shift-out-of-bounds in dummy_hub_control

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-and-tested-by: syzbot+5925509f78293baa7331@...kaller.appspotmail.com

Tested on:

commit:         e37b12e4 Merge tag 'for-linus-5.11-ofs1' of git://git.kern..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel config:  https://syzkaller.appspot.com/x/.config?x=98408202fed1f636
dashboard link: https://syzkaller.appspot.com/bug?extid=5925509f78293baa7331
compiler:       gcc (GCC) 10.1.0-syz 20200507
patch:          https://syzkaller.appspot.com/x/patch.diff?x=16f0bc70d00000

Note: testing is done by a robot and is best-effort only.